Im trying open pdf`s from a selectable list with a wevbview but when I click in app nothing happens, I have given the app internet permision also read and write(tough not needed) to ext storage. Can anyone give me a hint?
I have tested the google docs version it works with it but there are login and print buttons there where they dont work in webview, and Id like users to save the pdf they pick to view
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (url.endsWith(".pdf")){
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.parse(url), "application/pdf");
try{
view.getContext().startActivity(intent);
} catch (ActivityNotFoundException e) {
//user does not have a pdf viewer installed
}
} else {
webview.loadUrl(url);
}
return true;
Ok so I changed the code so instead of viewing in the webview it should just download the file. I still have no idea why the above code was not calling the default pdf viewer on the device.I had installed over 5 pdf viewers on my device and made at least 3 of them default to test - didnt work. So in the end I just changed the shouldOverrideUrlLoading to download the file in the ext storage and from then, the user can open it by any app he wants/has installed. Solution:
public boolean shouldOverrideUrlLoading (WebView view, String url) {
if (url.endsWith(".pdf")) {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
return true;
}
return false;
}
also added permissions to manifest to access the default download manager and external storage
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_DOWNLOAD_MANAGER"/>
this fixed it for me.
Related
In my IoT mobile app, I created a page showed on iOS device as UIModalPresentationStyle.PageSheet.
During the page load I don't want the page will react to user interaction, in particular I don't want the page will be closed, because the app interacts with a physical device.
The page will be enabled to be closed once all the background tasks will be completed.
I tried to set the page property IsEnabled to false, but again I'm able to close the page.
That's a code snippet from the page constructor
public ParametersListPage(ControlUnitParametersCategory parametersCategory, bool isParametersListReadOnly = false)
{
InitializeComponent();
IsEnabled = false;
On<iOS>().SetModalPresentationStyle(UIModalPresentationStyle.PageSheet);
MessagingCenter.Subscribe<ListParamsViewModel>(this, Constants.ACTION, async (sender) =>
{
IsEnabled = true;
await DisplayAlert(Resource.DoAct, Resource.DoActMsg, "OK");
}
);
What Am I missing?
Thank you
Do you want to disable user actions during interaction? If so, you can try setting the UserInteractionEnabled property to false to disable the user's actions so that the user will never be able to trigger any events (including touchscreens).
For Xamarin.Forms you can refer to the following code:
MyPageRenderer:
[assembly:ExproRenderer(typeof(ParametersListPage),typeof(ParametersListPageRenderer))]
namespace FormsDemo.iOS
{
public class ParametersListPageRenderer:PageRenderer
{
protected override void OnElementChanged(VisualElementChangedEventArgs e)
{
base.OnElementChanged(e);
this.View.UserInteractionEnabled=false;
}
}
}
If you just want the user not to close the page during interaction, it is better to set a popup reminder.
We're currently going through upgrading and ran into an issue where we can no longer redirect a user to one of our files. We've tried all of the different redirect methods, but for example purposes this is the easiest to show. If you use the below action and feed it a file it does nothing. However, if you change the "false" to "true" (for forcedownload) it will indeed download the file. This reinforces what we have seen with the other redirect methods. The system will not let you redirect to a URL that has .ashx in the url.
Is this an intentional change or is this a bug? We tried both 19.205.0023 and 19.207.0026
Thanks for your help =)
public PXAction<UsrDesign> viewFile;
[PXUIField(DisplayName = "View File")]
[PXButton()]
protected virtual void ViewFile ()
{
string fileName = Design.Current.ProofFile; // whatever file you want, in our case it comes from custom screen
UploadFile uploadFile = PXSelect<UploadFile, Where<UploadFile.name, Equal<Required<UploadFile.name>>>>.Select(this, fileName);
UploadFileMaintenance fileGraph = PXGraph.CreateInstance<UploadFileMaintenance>();
var file = fileGraph.GetFile((Guid)uploadFile.FileID);
throw new PXRedirectToFileException(file, false);
}
Hi i am using liferay/api/secure/jsonws services to upload documents, getting documents, from a outside application , in the same way i want to download the documents also, i checked my liferay jsonws , there is no method or service which i can use for download , or i don't know about it , please suggest me a way to download documents from outside application , by using jsonws or any other way is also fine.
Edit after i got to know how to download document.
Hi I tried to download liferay document from outside application by using getURl, but every time for all document i am getting liferay login page content
i have already tried get-file-as-stream json-rpc call but that also giving me null response
the code which i have used is:
final HttpHost targetHost = new HttpHost(hostname.trim());
System.out.println(targetHost.getHostName());
UsernamePasswordCredentials creds = new UsernamePasswordCredentials(username, password);
System.out.println(creds);
final AuthScope authscope = new AuthScope(targetHost);
httpclient.getCredentialsProvider().setCredentials(authscope, creds);
final AuthCache authCache = new BasicAuthCache();
final BasicScheme basicAuth = new BasicScheme();
authCache.put(targetHost, basicAuth);
final BasicHttpContext localContext = new BasicHttpContext();
localContext.setAttribute(ClientContext.AUTH_CACHE, authCache);
final HttpGet httpget = new HttpGet(hostname+"/documents/" + groupId + "/" + folderId + "/" + filename);
final HttpResponse response = httpclient.execute( httpget, localContext);
if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
final org.apache.http.HttpEntity entity = response.getEntity();
if (entity != null) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
entity.writeTo(baos);
return baos.toByteArray();
}
}
return null;
} finally {
httpclient.getConnectionManager().shutdown();
}
}
i am adding basic auth header will correct username and password, don't know how this login page is coming, is there any permission which i need to change or any configurations issue, please help in this.
You could use the Liferay WebDav Services to download files from your document-library. The paths to download can be inspected inside of the control-panel when clicking on a file entry (WebDAV URL toogle link). The paths usually look like: /webdav/{site-name}/document_library/{folder-name}/{file-name}
Otherwise, you could mimic the request URLs Liferay creates inside the documents-media portlet to download the file entry.
But you should take care about authentication, when your files (and folders) are not visible to guests.
I have an application which receives urls from a server, using Firebase. When the url is received, the file at that url is automatically saved on the local storage (they are gpx files).
But after this, I want my application to prompt the user to open the downloaded file with whatever navigation application they have installed on their phone. Something similar to when you go to the file manager yourself, click on a file, and the system shows you all applications which could open that file, and lets you chose (or opens it directly with your default setting, if you have one).
I have not been able to find anything about this, and searches containing "android studio" and "open file" show mostly tutorials about how to manage the source files themselves, so they are not helpful at all.
You could do something like:
String mimeType = myMime.getMimeTypeFromExtension(fileExt(getFile()).substring(1));
newIntent.setDataAndType(Uri.fromFile(getFile()),mimeType);
private String fileExt(String url) {
if (url.indexOf("?") > -1) {
url = url.substring(0, url.indexOf("?"));
}
if (url.lastIndexOf(".") == -1) {
return null;
} else {
String ext = url.substring(url.lastIndexOf(".") + 1);
if (ext.indexOf("%") > -1) {
ext = ext.substring(0, ext.indexOf("%"));
}
if (ext.indexOf("/") > -1) {
ext = ext.substring(0, ext.indexOf("/"));
}
return ext.toLowerCase();
}
}
This allows you to get the type based on file extension. Then just startActivity passing in the newIntent. This should achieve what you are looking for.
I'm using the below code (references from, http://www.java-tips.org/java-me-tips/midp/playing-video-on-j2me-devices.html). It fails at 'realize()', with the javax.microedition.media.MediaException, "Unable to create native player". What is the problem here?
I tried this using both Eclipse and Netbeans. Am I missing some "internet" permissions or using any incorrect encoding, the video is an external 'mpg' test-resource and does work fine when downloaded through a desktop browser.
public void run()
{
String url = "http://www.fileformat.info/format/mpeg/sample/05e7e78068f44f0ea748855ef33c9f4a/MELT.MPG";
//Append the GUI to a form
Form form = new Form("Video on java mobile!");
Display display = Display.getDisplay(this);
display.setCurrent(form);
try
{
HttpConnection conn = (HttpConnection)Connector.open(url,
Connector.READ_WRITE);
InputStream is = conn.openInputStream();
Player p = Manager.createPlayer(is,"video/mpeg");
//I tried the below, but that didn't work either
//Player p = Manager.createPlayer(url);
p.realize();
//Get the video controller
VideoControl video = (VideoControl) p.getControl("VideoControl");
if(video != null)
{
//Get a GUI to display the video
Item videoItem = (Item)video.initDisplayMode(
VideoControl.USE_GUI_PRIMITIVE, null);
form.append(videoItem);
}
//Start the video
p.prefetch();
p.start();
}
catch(Exception e)
{
form.append(url + " Error:" + e.getMessage());
}
}
I've just started with Java, Eclipse, Netbeans. Since, there similar samples found everywhere, I believe I'm missing something very basic. Can someone please help?
The problem here was the video file. Although my source video seemed "mpeg", it wasn't acceptable to the emulator. After searching through a bit, I found a converter and I manually converted some sample mp4 to "mpeg". It finally worked with the same emulator, after I tried to download and play these manually converted files.
One piece of advise if you are new J2ME/JavaME apps (like me), keep playing with the input data sources/formats and the emulators. Switching emulators or the input data-formats is an easy way to identify the not-so-evident problems.